Car-haul.



PATENTED JULY 18, 1905.

F. V. HETZEL.

GAR HAUL.

APPLIOATION FILED MAY 5. 1903.

o o o o o m g HQ 0 Q o a w s .uumm a mum on. "momma-m 066M011 NITEDSTATES Patented July 18, 1905.

PATENT Trice.

FREDERIO V. HETZEL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE LINKBELT ENGINEERING COMPANY, OF PHILADELPHIA, PENN- SYLVANIA, A CORPORATIONOF PENNSYLVANIA.

CAR-HAUL.

SPECIFICATION forming part of Letters Patent No. 795,124, dated July 18,1905.

Application filed May 5, 1903. Serial No. 155,764.

To It 1117mm, it nan/7 concern:

Be it known that I, FREDERIC V. HETZEL, a citizen of the United States,residing in Philadelphia, Pennsylvania, have invented certainImprovements in Oar-Hauls, of which the following is a specification.

The object of my invention is to so construct a car-haul fortransferring cars from a track to the dump or discharging-platform thatthe strain will be gradually transferred from one car to another withoutjar. This object I attain in the following manner, reference being hadto the accompanying drawings, in which Figure 1 is a side view, partlyin section, showing my improved car-haul in connection with a series ofcars. Fig. 2 is a plan view of a portion of the chain. Fig. 3 is anenlarged section on the line 3 3, Fig. I; and Fig. 4 is a perspectiveview of one of the pivoted hooks.

A is the track on which travel the wheels 6 of the cars B.

D is an endless chain. which passes around sprocket-wheels (Z on a shaftD. One of these shafts may be driven so as to impart motion to thechain. At each side of the chain are rails f, on which travel therollers cl, mounted on cross-shafts a in the present in- 0 stance.

Hooks E are pivoted on the shafts e of the chain I), and these hooksengage bars 5 on the cars B or they may engage the axles or other partsof the car to move the cars for- 'ward toward the dump. It has been theusual practice to fix the hooks rigidly to the chain, and the greatobjection to this construction is that when a hook commences to passaround the forward sprocket-wheel before it disen- 0 itself from the carit forces the car forward, owing to the fact that the end of the hook ismoving at a greater speed than the chain in passing around the wheel.This causes a jar or shock to the other cars, which is objectionable. Iobviate this objection by pivoting the hook so that it will disengageitself from the car before it passes around the forward wheel.

The hook E shown in the drawings has two connected side members 6 a inthe form 5 of bell -crank levers, and between the side members is aroller 0 at the outer end of one arm of the lever. The other arm is ofsuch a length as to engage a bar or other projection on a car. Theroller 0 travels over a rail F, which has a cam or depressed portion Ffat its forward end.

The hooks on the'chain are so spaced that when the hook engaging thefirst car of a train is free of the control of the cam it is allowed todrop back and swing. The hook following is in such position back of thebar or other portion of the second car that it will engage the secondcar and take the strain of the train, allowing the first car to go free.

As the first hook is backed off by traveling over the cam-surface of therail it allows the second hook to move forward and engage the second carbefore the first hook is free, so as to avoid jars. The grade in manyinstances is such that the first car will then be pushed by the secondcar, and this releases the tension of the coupling between the first andsecond cars and the coupling-pin can then be readily withdrawn, so as todetach the first car from the train, allowing it to go free to the dump.After the contents of the car have been discharged it will be directedin the usual manner to the downhaul.

I claim as my invention- 1. The combination in a ear-haul, of an endlesschain, wheels around which the chain passes, a series of hooks pivotedto the chain, each hook being in the form of a bell-crank lever, one armof each hook arranged to en 8 5 gage a car, the other arm of the hookextending rearwardly, a track over which the arm travels, and adepressed portion in the track forming a cam to allow the hook to turnon its pivot, substantially as described. 9

2. The combination of an endless chain, a hook pivoted thereto, saidhook being made of two side members each in the form of a bell-cranklever, a roller mounted between the two members, a cam-rail bearingagainst the roller to hold the hook in operative position,

and the cam-section of said track allowing the 0nd book will engage thesecond car without hook to turn on its pivot to clear the car, subjar,substantially as described. stantially as described. In testimonyWhereofIhave signed my name 3. The combination in a car-haul, of an endto this specification in the presence of two sub- 5 less chain havingtWo or nlnore hoolzs pivotefil scribing Witnesses.

thereon, means for contro ling the lOOkS, an t a cam portion forreleasing each book at-a FREDERK E predetermined point, said hooks beingso ar- YVitnesses: ranged in respect to the cars that as one book WILL.A. BARR, I0 is being disengaged from the first car the sec- Jos. H.KLEIN.

